/* ==========================================================================
   岩国 古民家民泊 — Shared Stylesheet
   Design concept: 藍(indigo) × 生成り(washi paper) × 柿渋(persimmon)
   Layout grounded in tatami proportions (2:1), shoji-lattice dividers.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Shippori+Mincho:wght@400;500;600;700;800&family=Noto+Sans+JP:wght@300;400;500;600;700&display=swap');

:root {
  /* Color tokens */
  --color-base:        #EFE8D8; /* washi paper */
  --color-base-alt:     #E3D8C0; /* deeper section wash */
  --color-white:        #FBF8F1; /* card / panel surface */
  --color-ink:          #2A2420; /* sumi ink — primary text */
  --color-ink-soft:      #5B5148; /* secondary text */
  --color-indigo:        #28425C; /* aizome indigo — primary brand */
  --color-indigo-deep:    #1B2C3D; /* indigo, darker (headers/footer) */
  --color-persimmon:      #9B3B2C; /* kakishibu — accent / CTA */
  --color-persimmon-deep:  #7E2F22;
  --color-brass:          #8A6E3D; /* fine line / label accent */
  --color-line:           #C9BB9C; /* dividers, borders */
  --color-line-soft:       #DCD1B6;

  /* Type */
  --font-head: "Shippori Mincho", serif;
  --font-body: "Noto Sans JP", sans-serif;

  /* Layout */
  --content-width: 1120px;
  --gutter: clamp(20px, 5vw, 64px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

body {
  margin: 0;
  background: var(--color-base);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-head);
  color: var(--color-indigo-deep);
  line-height: 1.4;
  margin: 0;
  font-weight: 600;
}

p { margin: 0 0 1em; max-width: 62ch; }
a { color: inherit; }

img, svg { max-width: 100%; display: block; }

.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-persimmon);
  outline-offset: 3px;
}

/* ---------- Layout helpers ---------- */
.wrap {
  max-width: var(--content-width);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.section { padding: clamp(56px, 9vw, 120px) 0; }
.section--alt { background: var(--color-base-alt); }
.section--indigo { background: var(--color-indigo-deep); color: var(--color-base); }
.section--indigo h2, .section--indigo h3 { color: var(--color-base); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--color-brass);
  margin-bottom: 14px;
}
.eyebrow::before {
  content: "";
  width: 22px; height: 1px;
  background: var(--color-brass);
  display: inline-block;
}

.section-head {
  max-width: 640px;
  margin-bottom: clamp(32px, 5vw, 56px);
}
.section-head h2 { font-size: clamp(1.7rem, 3vw, 2.3rem); }
.section-head p { margin-top: 14px; color: var(--color-ink-soft); }
.section--indigo .section-head p { color: #CBD6DE; }

/* ---------- Buttons / CTA ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 30px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: 2px;
  cursor: pointer;
  transition: background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease;
}
.btn--primary {
  background: var(--color-persimmon);
  color: var(--color-white);
}
.btn--primary:hover { background: var(--color-persimmon-deep); }

.btn--outline {
  background: transparent;
  color: inherit;
  border-color: currentColor;
}
.btn--outline:hover {
  background: var(--color-ink);
  color: var(--color-base);
  border-color: var(--color-ink);
}
.section--indigo .btn--outline:hover {
  background: var(--color-base);
  color: var(--color-indigo-deep);
}

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(239, 232, 216, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--color-line);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 84px;
}
.brand {
  display: flex;
  align-items: baseline;
  gap: 10px;
  text-decoration: none;
  color: var(--color-indigo-deep);
}
.brand__mark { width: 30px; height: 30px; flex-shrink: 0; }
.brand__name {
  font-family: var(--font-head);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}
.brand__sub {
  font-size: 0.68rem;
  color: var(--color-ink-soft);
  letter-spacing: 0.04em;
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(16px, 2.5vw, 34px);
}
.nav__link {
  font-size: 0.92rem;
  text-decoration: none;
  color: var(--color-ink);
  position: relative;
  padding-bottom: 4px;
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: var(--color-persimmon);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}
.nav__link:hover::after,
.nav__link[aria-current="page"]::after { transform: scaleX(1); }
.nav__link[aria-current="page"] { color: var(--color-persimmon); }

.nav__cta {
  padding: 10px 20px;
  font-size: 0.85rem;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle__bar {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--color-ink);
  margin: 5px 0;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

@media (max-width: 860px) {
  .nav {
    position: fixed;
    top: 84px; left: 0; right: 0; bottom: 0;
    background: var(--color-base);
    flex-direction: column;
    align-items: flex-start;
    padding: 36px var(--gutter);
    gap: 26px;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
  }
  .nav.is-open { transform: translateX(0); }
  .nav__link { font-size: 1.15rem; }
  .nav-toggle { display: block; }
  .nav-toggle.is-open .nav-toggle__bar:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
  .nav-toggle.is-open .nav-toggle__bar:nth-child(2) { opacity: 0; }
  .nav-toggle.is-open .nav-toggle__bar:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }
}

/* ---------- Hero ---------- */
.hero {
  padding: clamp(48px, 8vw, 88px) 0 0;
  overflow: hidden;
}
.hero__grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(24px, 4vw, 48px);
  align-items: center;
}
.hero__eyebrow { color: var(--color-brass); }
.hero h1 {
  font-size: clamp(2.3rem, 5vw, 3.6rem);
  letter-spacing: 0.01em;
}
.hero__lead {
  margin-top: 22px;
  font-size: 1.08rem;
  color: var(--color-ink-soft);
  max-width: 46ch;
}
.hero__actions {
  margin-top: 34px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.hero__art { width: 100%; }

@media (max-width: 860px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__art { order: -1; max-width: 420px; margin: 0 auto; }
}

/* ---------- Feature list (asymmetric, not cards) ---------- */
.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--color-line);
}
.feature {
  padding: 34px 28px 34px 0;
  border-bottom: 1px solid var(--color-line);
  border-right: 1px solid var(--color-line);
}
.feature:nth-child(3n) { border-right: none; }
.feature__num {
  font-family: var(--font-head);
  font-size: 0.85rem;
  color: var(--color-persimmon);
  margin-bottom: 12px;
  display: block;
}
.feature h3 { font-size: 1.15rem; margin-bottom: 10px; }
.feature p { color: var(--color-ink-soft); margin-bottom: 0; font-size: 0.96rem; }

@media (max-width: 760px) {
  .features { grid-template-columns: 1fr; }
  .feature { border-right: none; padding-right: 0; }
}

/* ---------- Split section (image/art + text) ---------- */
.split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
}
.split--reverse { grid-template-columns: 1.1fr 0.9fr; }
.split--reverse .split__art { order: 2; }
@media (max-width: 860px) {
  .split, .split--reverse { grid-template-columns: 1fr; }
  .split--reverse .split__art { order: -1; }
}
.split__art { background: var(--color-white); border: 1px solid var(--color-line); padding: clamp(20px, 3vw, 36px); }

/* ---------- Divider (shoji lattice) ---------- */
.lattice-divider { width: 100%; height: 28px; color: var(--color-line); }

/* ---------- Quote / testimonial ---------- */
.quote {
  border-left: 2px solid var(--color-persimmon);
  padding-left: 26px;
  font-family: var(--font-head);
  font-size: 1.15rem;
  color: var(--color-indigo-deep);
}
.quote cite {
  display: block;
  margin-top: 14px;
  font-family: var(--font-body);
  font-style: normal;
  font-size: 0.85rem;
  color: var(--color-ink-soft);
}
.quotes {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}
@media (max-width: 760px) { .quotes { grid-template-columns: 1fr; } }

/* ---------- Room / list rows ---------- */
.info-rows { border-top: 1px solid var(--color-line); }
.info-row {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 24px;
  padding: 22px 0;
  border-bottom: 1px solid var(--color-line);
}
.info-row dt {
  font-family: var(--font-head);
  color: var(--color-brass);
  font-size: 0.95rem;
}
.info-row dd { margin: 0; color: var(--color-ink-soft); }
@media (max-width: 600px) {
  .info-row { grid-template-columns: 1fr; gap: 6px; }
}

/* ---------- Steps (genuine sequence: tea ceremony flow) ---------- */
.steps { border-top: 1px solid var(--color-line); }
.step {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 20px;
  padding: 28px 0;
  border-bottom: 1px solid var(--color-line);
}
.step__num {
  font-family: var(--font-head);
  font-size: 1.6rem;
  color: var(--color-persimmon);
}
.step h3 { font-size: 1.1rem; margin-bottom: 8px; }
.step p { color: var(--color-ink-soft); margin-bottom: 0; }

/* ---------- CTA band ---------- */
.cta-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.cta-band h2 { font-size: clamp(1.5rem, 2.8vw, 2rem); max-width: 480px; }

/* ---------- Gallery grid ---------- */
.gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.gallery__item {
  aspect-ratio: 4 / 3;
  background: var(--color-white);
  border: 1px solid var(--color-line);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.gallery__item--tall { aspect-ratio: 4 / 5; grid-row: span 2; }
@media (max-width: 760px) {
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .gallery__item--tall { grid-row: span 1; aspect-ratio: 4/3; }
}

/* ---------- Table (pricing / amenities) ---------- */
.plain-table { width: 100%; border-collapse: collapse; }
.plain-table th, .plain-table td {
  text-align: left;
  padding: 14px 16px;
  border-bottom: 1px solid var(--color-line);
  font-size: 0.95rem;
}
.plain-table th {
  font-family: var(--font-head);
  font-weight: 600;
  color: var(--color-indigo-deep);
  border-bottom: 1px solid var(--color-ink);
}
.plain-table td { color: var(--color-ink-soft); }

/* ---------- Map / contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 5vw, 64px);
}
@media (max-width: 860px) { .contact-grid { grid-template-columns: 1fr; } }

.contact-card {
  background: var(--color-white);
  border: 1px solid var(--color-line);
  padding: clamp(24px, 3vw, 40px);
}
.contact-card dt { font-family: var(--font-head); color: var(--color-brass); font-size: 0.9rem; margin-top: 18px; }
.contact-card dt:first-child { margin-top: 0; }
.contact-card dd { margin: 4px 0 0; }

.map-frame {
  border: 1px solid var(--color-line);
  overflow: hidden;
  min-height: 320px;
}
.map-frame iframe { width: 100%; height: 100%; min-height: 320px; border: 0; display: block; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-indigo-deep);
  color: #C9D3D9;
  padding: 56px 0 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(255,255,255,0.14);
}
@media (max-width: 700px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-grid h4 {
  color: var(--color-base);
  font-size: 0.95rem;
  margin-bottom: 16px;
}
.footer-brand__name {
  font-family: var(--font-head);
  color: var(--color-base);
  font-size: 1.15rem;
  margin-bottom: 10px;
}
.footer-links { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.footer-links a { text-decoration: none; font-size: 0.92rem; color: #C9D3D9; }
.footer-links a:hover { color: var(--color-base); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 22px;
  font-size: 0.8rem;
  color: #90A0AA;
}

/* ---------- Page intro (sub pages) ---------- */
.page-intro {
  padding: clamp(52px, 8vw, 88px) 0 clamp(30px, 5vw, 50px);
  border-bottom: 1px solid var(--color-line);
}
.page-intro h1 { font-size: clamp(2rem, 4vw, 2.8rem); }
.page-intro p { margin-top: 18px; color: var(--color-ink-soft); font-size: 1.05rem; max-width: 56ch; }

/* ---------- Utility ---------- */
.mt-0 { margin-top: 0 !important; }